How to Use LLM to Create an Expert System

Expert systems are computer programs that use artificial intelligence to provide solutions to complex problems. They are designed to mimic the decision-making abilities of a human expert in a particular field. LLM, or Language Model for Knowledge Graphs and Text Generation, is a powerful
tool for creating expert systems. In this blog post, we will discuss how to  use LLM to create your own expert system.

What is LLM?

LLM is a language model that can be used to generate text based on a knowledge graph. A knowledge graph is a way of representing information in the form of nodes and edges. Nodes represent entities, such as people, places, or concepts, while edges represent the relationships between them. By using a knowledge graph, LLM can understand the context of the information it processes and generate more accurate and relevant text.

Steps to Create an Expert System with LLM

1.      Define the Problem Domain: The first step in creating an expert system with LLM is to define the problem domain. This could be anything from medical diagnosis to financial planning. The more specific your problem domain, the easier it will be to collect relevant data.

2.       Gather Data: The next step is to gather data and information about the problem domain. This could include research papers, articles, and expert opinions. The more data you have, the better your expert system will be.

3.       Create a Knowledge Graph: Once you have collected your data, the next step is to create a knowledge graph. You can use tools like Neo4j or Stardog to create your knowledge graph. Nodes in your knowledge graph could represent entities such as symptoms, diseases, or treatments, while edges could represent relationships between them.

4.       Train the Language Model: After you have created your knowledge graph, the next step is to train the language model. You can use libraries like Hugging Face’s Transformers or Google’s TensorFlow to train your model. The goal of training your model is to teach it how to generate text based on the knowledge graph.

5.       Test and Refine: Once you have trained your model, the next step is to test it with real-world data and refine it based on feedback. This will help you improve the accuracy and effectiveness of your expert system over time.

Choosing the Right Language Model for Your Expert System

When creating an expert system with LLM, it is crucial to select the appropriate language model for the task at hand. While LLM is a powerful tool for generating text based on a knowledge graph, there are several other language models that may be better suited for certain tasks. Here is a few popular language models to consider:

1.      GPT-3: GPT-3 is a powerful language model that has been trained on a massive amount of data. It is known for its ability to generate human-like text, making it a popular choice for various applications, including chatbots, content creation, and language translation. While it may not provide a deep understanding of specific domains, it can still be useful in generating general information and responses for an expert system. This can be particularly helpful when dealing with complex questions or when there is a need for a more conversational tone.

2.      BERT: BERT is a highly effective language model that excels in natural language understanding and sentiment analysis. It has been trained on large amounts of text data and can be fine-tuned for specific domains, allowing it to provide high-quality text generation that aligns with the context and requirements of the expert system. This makes it an ideal choice for expert systems that require a deep understanding of a particular domain, such as medical diagnosis or legal advice.

3.      RoBERTa: RoBERTa builds upon BERT’s architecture and has been trained on even larger amounts of data, resulting in improved performance in various natural language processing tasks. By fine-tuning RoBERTa for specific domains, it can generate accurate and contextually aware text, enhancing the effectiveness of the expert system. This makes it an ideal choice for expert systems that require a high degree of accuracy and contextually relevant text generation.

4.      ALBERT: ALBERT is a lightweight version of BERT that achieves comparable performance with fewer parameters. It is designed to be more memory-efficient, making it a suitable choice for resource-constrained environments. By fine-tuning ALBERT, you can create expert systems that provide efficient and accurate text generation. This makes it an ideal choice for expert systems that require high performance in memory-limited environments.

5.      T5: T5 is a versatile language model that can be fine-tuned for a wide range of tasks, including text generation. It has achieved state-of-the-art results in various natural language processing benchmarks, making it a powerful tool for creating expert systems. By leveraging T5, you can create expert systems that offer high-quality and contextually relevant text generation, making it an ideal choice for applications where accuracy and relevance are critical.

6.      LangChain: LangChain is a language model designed to generate text in multiple languages. It can be fine-tuned for specific domains and can provide high-quality text generation in various languages, making it an ideal choice for expert systems that require multilingual support.

7.       GPTforALL: GPTforALL is a language model designed to be more inclusive and accessible. It has been trained on diverse datasets and can provide text generation that is more representative of different cultures and backgrounds. This makes it an ideal choice for expert systems that require more inclusive and diverse text generation.

8.      Private GPT: Private GPT is a language model designed to provide secure and private text generation. It can be used in applications where data privacy is critical, such as healthcare or finance. Private GPT can be fine-tuned for specific domains while ensuring the privacy and security of sensitive information.

It is important to consider factors such as the size of the knowledge graph, the complexity of the domain, and the desired level of accuracy when selecting a language model. Choosing the right model will ensure that your expert system provides accurate and relevant insights to users, enhancing its overall effectiveness.


In conclusion, creating an expert system with LLM can be a powerful tool for solving complex problems. By defining the problem domain, gathering data, creating a knowledge graph, training the language model, and testing and refining it, you can create an effective expert system that generates accurate and relevant text. When selecting a language model, it is important to consider factors such as the size of the knowledge graph, the complexity of the domain, and the desired level of accuracy. With the right language model, you can create an expert system that provides valuable insights and solutions to users.

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